Economic theory shows that society may desire fewer locations from the monopoly firm when the transport costs are low and/or the fixed set-up costs are high. When society restricts the number of locations in the market, some consumers will be close to a location and some may be far away, and the far away customers may not purchase the good.

Briefly describe in words a popular pricing practice that could incent both "close' and "far away" consumer types to buy the good and increase societal welfare.